COSMIC

COSMIC is a desktop environment developed in the Rust programming language, using the iced cross platform GUI library for Rust, and Smithay as building blocks for its compositor, cosmic-comp. Cosmic-comp is comparable to smithay's own anvil compositor demonstration, just like the Wayland project uses Weston as demo compositor. Its first release is called Epoch.

Installation

COSMIC can be installed via cosmic-session or the cosmic group. The development version can be obtained with cosmic-session-git^AUR which depend on all of the component packages.

When building from source, beware the cosmic-applets-git^AUR dependency needs more than 8GB of RAM. Restricting linking to one job is an option to get it built. If you build it repeatedly, setting the CARGO_TARGET_DIR environment variable helps downloading less often:

MOLD_JOBS=1 CARGO_TARGET_DIR=/tmp/mytarget

Individual components coming as dependencies of cosmic-session

COSMIC comprises a compositor, library, and applets, which may be installed as parts. cosmic-comp, cosmic-applets, cosmic-app-library, cosmic-bg, cosmic-icon-theme, cosmic-launcher, cosmic-notifications, on screen display to overlay messages with cosmic-osd, a dock and panel with cosmic-panel, cosmic-settings, and others.

Independent components

An editor, cosmic-text-editor, a file manager cosmic-files, a terminal, cosmic-terminal, and wallpapers, cosmic-wallpapers are provided.

Starting

The easiest way to start COSMIC is through a display manager, where it will show up as an additional option after installation, besides e.g. GNOME, KDE Plasma, etc.

To start COSMIC directly from the console, run:

$ start-cosmic

Using Cosmic Greeter

COSMIC ships cosmic-greeter, a display manager based on greetd. To use it, enable cosmic-greeter.service.

Configuration

The panel can be used to configure besides using the settings applet, examples of applets are provided.